EP2747924B1 - Cutting insert having v-shaped corner views and milling tool - Google Patents
Cutting insert having v-shaped corner views and milling tool Download PDFInfo
- Publication number
- EP2747924B1 EP2747924B1 EP12769175.6A EP12769175A EP2747924B1 EP 2747924 B1 EP2747924 B1 EP 2747924B1 EP 12769175 A EP12769175 A EP 12769175A EP 2747924 B1 EP2747924 B1 EP 2747924B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- end surface
- cutting insert
- corner
- insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005520 cutting process Methods 0.000 title claims description 123
- 238000003801 milling Methods 0.000 title claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 28
- 230000000717 retained effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/08—Disc-type cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F37/00—Manufacture of rings from wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
- B23C5/202—Plate-like cutting inserts with special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2200/00—Details of milling cutting inserts
- B23C2200/04—Overall shape
- B23C2200/0455—Square
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2200/00—Details of milling cutting inserts
- B23C2200/08—Rake or top surfaces
- B23C2200/085—Rake or top surfaces discontinuous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2200/00—Details of milling cutting inserts
- B23C2200/16—Supporting or bottom surfaces
- B23C2200/164—Supporting or bottom surfaces discontinuous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0407—Cutting angles
- B23C2210/0421—Cutting angles negative
- B23C2210/0428—Cutting angles negative axial rake angle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0407—Cutting angles
- B23C2210/0442—Cutting angles positive
- B23C2210/045—Cutting angles positive axial rake angle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/19—Rotary cutting tool
- Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
- Y10T407/1908—Face or end mill
- Y10T407/1924—Specified tool shape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
Definitions
- the present invention relates to cutting inserts and milling tools for metal cutting operations.
- Such milling tools include, for example, slotting cutters, extended flute milling cutters, end mills and face mills.
- the cutting inserts used in such milling cutters may have a major cutting edge configured to mill a shoulder in a workpiece.
- the cutting inserts may also have a secondary cutting edge adjacent the major cutting edge with a corner cutting edge extending between the two. At least a section of the adjacent secondary cutting edge may be configured to act as a wiper to provide a good surface finish on the surface of the workpiece adjacent the shoulder.
- US 2005/169716 A1 discloses a double-sided cutting insert, for use in a milling cutter, having two identical opposing end surfaces and two opposing identical major side surfaces.
- Major cutting edges are formed at the intersection of each major side surface with each end surface. Adjacent each major cutting edge, in each major side surface, is a primary relief surface.
- a line tangent to the primary relief surface at the major cutting edge is inclined to a median plane of the cutting insert at an acute interior angle.
- a cutting insert comprising two opposing identical end surfaces and a peripheral surface extending between the end surfaces.
- the peripheral surface meets the end surface at peripheral cutting edges.
- the cutting insert may be square-shaped in an end view.
- Each end surface has four corners, two diagonally opposite lowered corners and two diagonally opposite raised corners.
- a diagonal line passes through the lowered corners of each end surface.
- the peripheral surface has a V-shape in a view along the diagonal line associated with one end surface, and a V-shape in a view along the diagonal line associated with the other end surface.
- the two V-shapes are identical in form and oriented in opposite directions.
- the diagonal line associated with one end surface is perpendicular to the diagonal line associated with the other end surface.
- the peripheral surface comprises four identical side surfaces.
- Adjacent side surfaces may merges via a corner surface.
- the side surfaces may be parallelogrammatic in shape.
- a through hole extends between and opens out to the end surfaces.
- a rake surface extends from the peripheral cutting edge in each end surface.
- the peripheral cutting edge in each end surface comprises four corner cutting edges located at the corners of the end surface and four main cutting edges extending between pairs of adjacent corner cutting edges.
- One corner cutting edge of each such pair of adjacent corner cutting edges is located at a lowered corner and the other corner cutting edge is located at a raised corner.
- a milling tool comprising a plurality of cutting inserts in accordance with aspects of the subject matter of the present application and a plurality of insert pockets in which the cutting inserts are retained.
- Each insert pocket may comprise a base wall adjacent a side wall.
- the side wall may be provided with two spaced apart side abutment surfaces that abut a given side surface of the cutting insert, and the base wall may be provided with two non-coplanar base abutment surfaces that abut a non-operative end surface of the cutting insert.
- alternate cutting inserts may be oriented so that the operative main cutting edge of one cutting insert operates with a positive axial rake and the operative main cutting edge of an adjacent cutting insert operates with a negative axial rake.
- the cutting insert 10 is intended for use in milling cutting operations and may be made of a hard and wear-resistant material such as cemented carbide, by form-pressing and sintering carbide powders in a binder.
- the cutting insert 10 has two opposing identical end surfaces 12 and a peripheral surface 14 extending between the end surfaces 12.
- the end surfaces 12 can be considered, without loss of generality, to constitute an upper end surface 12' and a lower end surface 12" of the cutting insert.
- the cutting insert 10 is square-shaped in an end view thereof.
- the peripheral side surface 14 includes four identical side surfaces 16 and four identical corner surfaces 18 at which adjacent side surfaces 16 merge. As can be seen Figs. 5 and 6 , in a side view of the cutting insert 10 the side surfaces 16 are parallelogrammatic in shape.
- the cutting insert 10 has a central axis A and a through hole 20 extending between the end surfaces 12. The through hole may be centered about central axis A .
- the cutting insert 10 has a median plane M located between the end surfaces 12 and passing through the peripheral surface 14.
- the median plane M may be perpendicular to the peripheral surface 14.
- the median plane M may be perpendicular to the central axis A .
- Each end surface 12 has four corners 22, two diagonally opposite lowered corners 22' and two diagonally opposite raised corners 22".
- the lowered corners 22' are closer to the median plane M than the raised corners 22".
- Each corner surface 18 extends between a given raised corner 22" of one of the two opposing end surfaces 12 (e.g., the upper end surface 12') and a given lowered corner 22' of the other of one of the two opposing end surfaces 12 (e.g., the lower end surface 12").
- a diagonal line L passes through the lowered corners 22' of each end surface 12. In other words, a diagonal line is associated with each end surface.
- Each end surface 12 slopes from the raised corners 22" to the diagonal line L associated with that end surface 12.
- the central axis A passes through an intersection of the two diagonal lines L , it being understood that the diagonal lines L associated with the two end surfaces 12', 12" do not intersect in three dimensions.
- a peripheral cutting edge 24 is formed at the intersection of each end surface 12 and the peripheral surface 14.
- the peripheral cutting edge 24 comprises four main cutting edges 26, formed by the intersection of the side surfaces 16 with the end surface 12 and four corner cutting edges 28, formed by the intersection of the corner surfaces 18 with the end surface 12. Therefore, the cutting insert 10 is indexable with a total of eight main cutting edges 26 and eight corner cutting edges 28.
- Each main cutting edge 26 extends between a pair of corner cutting edges 28.
- One corner cutting edge 28 of each such pair of corner cutting edges 28 connecting to a common main cutting edge 26 is located at a lowered corner (22') and the other corner cutting edge (28) of that pair is located at a raised corner (22").
- a rake surface 30 along which chips cut from a workpiece flow during a metal cutting operation.
- Figs. 3 and 4 show views along the diagonal lines L for a given orientation of the cutting insert 10.
- one end surface 12 will be referred to as an upper end surface 12' and the other end surface 12 will be referred to as a lower end surface 12".
- Fig. 3 shows the view along the diagonal line L associated with the upper end surface 12' and is referred to herein as a first corner view of the cutting insert.
- the peripheral surface 14 has an upward-facing V-shape.
- Fig. 4 shows the view along the diagonal line L associated with the lower end surface 12" and is referred to herein as a second corner view of the cutting insert.
- the peripheral surface 14 has a downward-facing V-shape.
- the second corner view being a 90° rotation about the central axis A relative to the first side view.
- cutting insert may have 180° rotational symmetry about central axis A. Both views are for the orientation of the cutting insert 10 as shown in Fig. 1 .
- the peripheral surface 14 has a V-shape in a view along the diagonal line L.
- the V-shapes seen in Figs. 3 and 4 are identical in form to but with the "V" oriented in opposite directions.
- the milling tool 32 has an axis of rotation R and a plurality of insert pockets 34 in which the cutting inserts 10 are mounted and secured by means of a screw 36.
- Each insert pocket 34 comprises a base wall 38 adjacent a side wall 40.
- the side wall 40 is provided with two spaced apart side abutment surfaces 42 that abut a given side surface 16 of the cutting insert 10.
- the base wall 38 is provided with two non-coplanar base abutment surfaces 44 that abut a non-operative end surface 12 of the cutting insert 10.
- the cutting inserts 10 may be mounted such that they are alternately disposed with two different orientations of the operative main cutting edge 26. Some of the cutting inserts 10' may be oriented so their operative main cutting edge 26' presents a positive axial rake angle (illustrated also in Fig. 5 ) and the other cutting inserts 10" may be oriented so their operative main cutting edge 26" present a negative axial rake angle (illustrated also in Fig. 6 ).
- each end surface 12 of the cutting insert 10 in accordance with the subject matter of the present application has two main cutting edges 26 that can operate with a positive axial rake and two that can operate with a negative axial rake. Therefore, the cutting insert 10 has in total four main cutting edges 26 that can operate with a positive axial rake and four that can operate with a negative axial rake.
- the cutting inserts 10 in accordance with the subject matter of the present application are clearly advantageous when both positive and negative axial rakes are required.
- a single cutting insert 10 can be used to provide cutting edges with both positive and negative axial rake angles, a total of four of each kind.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12769175T PL2747924T3 (pl) | 2011-08-22 | 2012-08-09 | Wkładka skrawająca mająca widoki narożników w kształcie litery V oraz frez |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL214782A IL214782A (en) | 2011-08-22 | 2011-08-22 | Cutting and milling |
PCT/IL2012/050300 WO2013027212A1 (en) | 2011-08-22 | 2012-08-09 | Cutting insert having v-shaped corner views and milling tool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2747924A1 EP2747924A1 (en) | 2014-07-02 |
EP2747924B1 true EP2747924B1 (en) | 2015-12-16 |
Family
ID=45773807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12769175.6A Active EP2747924B1 (en) | 2011-08-22 | 2012-08-09 | Cutting insert having v-shaped corner views and milling tool |
Country Status (13)
Country | Link |
---|---|
US (1) | US8858127B2 (ja) |
EP (1) | EP2747924B1 (ja) |
JP (1) | JP6010124B2 (ja) |
KR (1) | KR101743333B1 (ja) |
CN (1) | CN103747905B (ja) |
BR (1) | BR112014001695B1 (ja) |
CA (1) | CA2846007C (ja) |
ES (1) | ES2561458T3 (ja) |
IL (1) | IL214782A (ja) |
PL (1) | PL2747924T3 (ja) |
PT (1) | PT2747924E (ja) |
RU (1) | RU2602920C2 (ja) |
WO (1) | WO2013027212A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012104082A1 (de) * | 2012-05-09 | 2013-11-14 | Walter Ag | Wendeschneidplatte für Eckfräser |
AT13700U1 (de) * | 2013-08-06 | 2014-06-15 | Ceratizit Austria Gmbh | Trennfräser-Schneideinsatz |
US20150117969A1 (en) * | 2013-10-29 | 2015-04-30 | Kennametal Inc. | Cutting insert and shim for heavy machining operations |
TWI494182B (zh) * | 2014-07-28 | 2015-08-01 | Hsin Tien Chang | Discarded structure of discarded blades |
CN113199071B (zh) | 2014-10-16 | 2023-09-01 | 株式会社泰珂洛 | 切削刀片及刀尖更换式旋转切削刀具 |
EP3338926B1 (en) * | 2016-12-22 | 2023-07-26 | Sandvik Intellectual Property AB | Cutting insert and shoulder milling tool |
CN107295907A (zh) * | 2017-06-07 | 2017-10-27 | 江苏鼎钰生态农业科技有限公司 | 一种电动修枝机中的刀片 |
EP3450069A1 (en) * | 2017-08-28 | 2019-03-06 | Sandvik Intellectual Property AB | A milling insert and a side and face milling tool |
US10525537B2 (en) * | 2017-11-17 | 2020-01-07 | Iscar Ltd. | Rotary cutting tool having disk-shaped cutting body and indexable cutting insert therefor |
US10525539B2 (en) * | 2018-01-08 | 2020-01-07 | Kennametal Inc. | Compression milling cutter with indexable cutting inserts |
KR102393186B1 (ko) * | 2018-03-28 | 2022-05-02 | 대구텍 유한책임회사 | 인서트 및 이를 포함하는 절삭 공구 조립체 |
US10406611B1 (en) * | 2018-03-28 | 2019-09-10 | Iscar, Ltd. | Cutting tool and cutting insert having complementary engagement features for eccentric mounting |
JP6617894B2 (ja) * | 2018-05-16 | 2019-12-11 | 株式会社タンガロイ | 切削インサート及び切削工具 |
US20210138563A1 (en) * | 2019-11-13 | 2021-05-13 | Taegutec Ltd. | Cutting insert and cutting tool assembly including same |
JP6875663B1 (ja) * | 2020-09-07 | 2021-05-26 | 株式会社タンガロイ | 切削インサート |
WO2023228741A1 (ja) * | 2022-05-25 | 2023-11-30 | 京セラ株式会社 | 切削工具及び切削加工物の製造方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL101985A (en) * | 1992-05-25 | 1996-12-05 | Iscar Ltd | Exchangeable milling cutting inserts |
RU2000174C1 (ru) * | 1992-07-01 | 1993-09-07 | Виктор Леонидович Федоров | Сборна фреза |
JP3628695B2 (ja) * | 1994-01-14 | 2005-03-16 | サンドビック アクティエボラーグ | スローアウェイチップおよび切削工具 |
IL153093A0 (en) * | 2002-11-26 | 2003-06-24 | Iscar Ltd | Cutting insert and cutting tool |
DE10312922B4 (de) * | 2003-03-22 | 2006-02-16 | Walter Ag | Schneidplatte und Fräswerkzeug |
IL160223A (en) | 2004-02-04 | 2008-11-26 | Carol Smilovici | Double-sided cutting insert and milling cutter |
SE529108C2 (sv) * | 2005-09-28 | 2007-05-02 | Seco Tools Ab | Fräs samt vändskär för spånavskiljande bearbetning med skäregg belägen lägre en stödyta |
JP4491404B2 (ja) * | 2005-11-07 | 2010-06-30 | 住友電工ハードメタル株式会社 | 刃先交換式チップと刃先交換式隅削りフライスカッタ |
JP2008229745A (ja) * | 2007-03-16 | 2008-10-02 | Mitsubishi Materials Corp | 切削インサートおよびインサート着脱式転削工具 |
DE102007022535A1 (de) * | 2007-05-14 | 2008-11-20 | Kennametal Inc. | Achtschneidiger Schneideinsatz sowie Werkzeughalter hierfür |
IL185840A (en) * | 2007-09-09 | 2011-03-31 | Iscar Ltd | Cutting insert |
IL187721A (en) * | 2007-11-28 | 2014-05-28 | Iscar Ltd | Cutting put |
KR100937459B1 (ko) * | 2008-03-26 | 2010-01-19 | 대구텍 유한회사 | 접선 방향 절삭 인서트 |
CA2727599A1 (en) * | 2008-06-13 | 2009-12-17 | Taegutec Ltd. | Cutting insert |
DE102009020373A1 (de) | 2009-05-08 | 2010-11-11 | Kennametal Inc. | Fräser-Schneideinsatz |
IL203283A (en) | 2010-01-13 | 2014-02-27 | Iscar Ltd | Cutting put |
JP5522253B2 (ja) * | 2010-03-30 | 2014-06-18 | 三菱マテリアル株式会社 | 刃先交換式切削工具 |
-
2011
- 2011-08-22 IL IL214782A patent/IL214782A/en active IP Right Grant
-
2012
- 2012-05-14 US US13/471,130 patent/US8858127B2/en active Active
- 2012-08-09 PT PT127691756T patent/PT2747924E/pt unknown
- 2012-08-09 CN CN201280040811.3A patent/CN103747905B/zh active Active
- 2012-08-09 WO PCT/IL2012/050300 patent/WO2013027212A1/en active Application Filing
- 2012-08-09 KR KR1020147003837A patent/KR101743333B1/ko active IP Right Grant
- 2012-08-09 EP EP12769175.6A patent/EP2747924B1/en active Active
- 2012-08-09 JP JP2014526600A patent/JP6010124B2/ja active Active
- 2012-08-09 RU RU2014110947/02A patent/RU2602920C2/ru active
- 2012-08-09 CA CA2846007A patent/CA2846007C/en active Active
- 2012-08-09 PL PL12769175T patent/PL2747924T3/pl unknown
- 2012-08-09 BR BR112014001695-0A patent/BR112014001695B1/pt active IP Right Grant
- 2012-08-09 ES ES12769175.6T patent/ES2561458T3/es active Active
Also Published As
Publication number | Publication date |
---|---|
CA2846007A1 (en) | 2013-02-28 |
WO2013027212A1 (en) | 2013-02-28 |
ES2561458T3 (es) | 2016-02-26 |
US20130051936A1 (en) | 2013-02-28 |
KR20140065390A (ko) | 2014-05-29 |
RU2602920C2 (ru) | 2016-11-20 |
EP2747924A1 (en) | 2014-07-02 |
IL214782A0 (en) | 2011-10-31 |
RU2014110947A (ru) | 2015-09-27 |
US8858127B2 (en) | 2014-10-14 |
PL2747924T3 (pl) | 2016-05-31 |
CA2846007C (en) | 2017-05-02 |
BR112014001695A2 (pt) | 2017-02-21 |
CN103747905B (zh) | 2017-04-12 |
KR101743333B1 (ko) | 2017-06-02 |
JP6010124B2 (ja) | 2016-10-19 |
PT2747924E (pt) | 2016-02-29 |
BR112014001695B1 (pt) | 2020-10-20 |
IL214782A (en) | 2016-02-29 |
CN103747905A (zh) | 2014-04-23 |
JP2014524362A (ja) | 2014-09-22 |
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